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QJ 311 MA
- Commodity name： QJ 311 MA
Design Features of QJ 311 MA Bearing
QJ 311 MA Bearing is characterized by a unique design where a single row of balls engages with four points of contact on the raceways (two inner and two outer points). This configuration forms an angular contact that allows the bearing to support axial loads from both directions. QJ 311 MA bore dia is 55 mm. Its out dia is 120 mm. QJ 311 MA width is 29 mm. It provides a balance of load handling, space utilization, and performance.
What Benefits Can QJ 311 MA Bearing Provide?
Axial Load Handling: Capable of supporting significant axial loads in both directions, ideal for applications requiring bidirectional axial load support.
Compact Design: Combines the functionality of double-row bearings in a more compact form, saving space in assembly.
Radial Load Capacity: Efficiently handles radial loads, providing versatility in various mechanical setups.
Precision and Stability: Offers high precision and stability in operation, essential for applications requiring accurate rotational movement.
Space Efficiency: Ideal for applications with limited space, delivering robust performance without the need for larger bearing arrangements.
What Can QJ 311 MA Bearing Be Used for?
QJ 311 MA Bearing is utilized in applications that demand robust axial and radial load support within a compact design. Key uses include:
Turntables and Indexing Tables: For precise and stable rotation under combined loads.
Steering Systems: In automotive and marine applications for efficient steering control.
Industrial Machinery: In gearboxes and drives where space efficiency and load capacity are crucial.
Cranes and Hoists: Providing reliable performance under heavy loads in lifting equipment.
Rotary Tables: In machine tools for precise positioning and movement.
| Part Number | QJ 311 MA |
| System of Measurement | Metric |
| Bearing Type | Ball |
| For Load Direction | Four Point Contact |
| Construction | Single Row |
| Seal Type | Open |
| Chamfer Dimension | 2 mm |
| Distance Pressure Point (a) | 61 mm |
| Bore Dia | 55 mm |
| Bore Dia Tolerance | -0.012mm to 0 |
| Outer Dia | 120 mm |
| Outer Dia Tolerance | -0.013mm to 0 |
| Width | 29 mm |
| Width Tolerance | -0.05mm to 0 |
| External Diameter On Inner Ring (Large Side Face) | 70.5 mm |
| Internal Diameter On Outer Ring | 97.8 mm |
| Dynamic Radial Load | 30825 lbf |
| Static Radial Load | 26550 lbf |
| Max Speed (X1000 rpm) | 10 |
| Ring Material | Chrome Steel |
| Ball Material | Chrome Steel |
| Cage Material | Brass |
| Lubrication | Lubricated |
| Temperature Range | -30° to 110 °C |
| Tolerance Class | P6 (ABEC-3) |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 1.75 kg |
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Our products are sold in Britain, America, Japan, Italy and Southeast Asia, well appreciated by their purchasers. We provide a wide range of products and related technologies to OEM and aftermarket customers around the world, in every major industry, at each phase of the asset lifecycle.
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In order to meet the needs of the masses of customers and improve the market competitiveness of our company, we can provide OEM service according to our customers' needs. We have gained ISO9001 certificate, CE certificate, GOST certificate and SGS certificate.
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LIBC bearing since its establishment has been operating integrity, committed to become one of the drive and control field, can provide regular products, solutions and value-added services, users preferred suppliers.
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